How it is done: images in visible light can be described in terms of their red, green and blue components (left ... be a reality thanks to researchers in the US, who have used machine learning to ...

The team built a machine learning engine by creating a data set of short exposure and long exposure low-light images (these were used for reference). The report states: Using the presented dataset ...

The weaker the illumination, the noisier the image, which explains the graininess of night-time mobile-phone selfies — not to mention low-light photomicrographs taken to protect fragile samples.